尽管iPhone为视图切换设计了许多效果，但有时候在同一视图中，从一副图片到另一幅图片通过一次简单的淡色效果，就能满足你所有的需要。 例如，在我最近设计的一个程序中，当程序启动时，我想对图片进行淡出，而另一副就是用户主界面的图片，效果为呈现在屏幕前方及屏幕中央。我所表达的效果如下图所示：-Although the iPhone is designed to switch the view of many effects, but sometimes in the same view, from one image to another one image through a simple pale effect, will be able to meet all your needs. For example, I recently designed a program, when the program starts, I want to fade out the picture, while the other deputy is the main interface, the user picture, the effect of rendering the screen front and center of the screen. I have expressed the effects as shown below: